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GF92 Gas Mass Flow Meters for Line Sizes to 2" [51 mm],
Wide-Turndown, High Feature
Mass Flow Meter SummaryThe GF92 inline type gas mass flow meter
combines FCI's highly reliable thermal dispersion, no-moving parts
flow element design with an advanced microprocessor-based
programmable transmitter in a rugged 316 stainless steel nickel
braze package for superior low flow performance.
The GF92 is a heavy duty industrial gas mass flow meter that offers
a wide turndown range of 1000:1, up to 3 different gas calibration
groups and its low flow performance characteristics make it ideal
for a wide range of applications including hazardous environments.
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Applications |
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Compressor fuel monitoring |
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Hydrogen
make-up gas monitoring |
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Nitrogen
purge monitoring |
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Fuel gas
monitoring |
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Process
gas monitoring |
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Digester
gas monitoring |
SpecificationsFlow Range: 0.006 to 2000 scfm
[0.01 to 3398 nmps] in
most gases at standard conditions of 70° F [21.1° C] and
14.7 psia [1.01325 bar (a)].
Accuracy: (at calibrated conditions)
Flow: ± 1% reading + 0.5% full scale
Temperature: ± 2° F [± 1° C]. Valid only above 5 sfps
[1.5 nmps].
Temperature Coefficient:
With optional temperature compensation. Valid from 10% to 100% of full-scale calibration
Flow: Maximum ± 0.015% of reading/ºF up to 850ºF [±0.03% of reading/ºC up to 454 ºC]
Repeatability:
Flow: ± 0.5% reading
Temperature: ± 1° F [± 0.6° C]
Turndown Ratio: Factory set and field adjustable from
2:1 to 100:1 within the calibrated flow range.
Standard: Factory set and field adjustable from 2:1
to 100:1 within the calibrated flow range.
Optional: Up to 1000:1 in some applications.
Temperature Compensation:
Standard: ± 30° F [± -1° C]
Optional: ± 100° F [± 38° C]
Enclosure: (Available in Remote Configuration Only)
Flow Element: Powder coated aluminum enclosure is
rated for hazardous location use Groups B,
C, D, E, F and G, CENELEC EEx d IIC and resists the effects
of weather and corrosion per NEMA/CSA Type 4X (equivalent to
IP66). Stainless steel is available as an option.
Transmitter: Powder coated carbon steel enclosure
resists the effects of weather and corrosion per NEMA/CSA
Type 4X (equivalent to IP66). Stainless steel is available
as an option.
Agency Approvals: FM, CSA, CENELEC, ATEX and CE Mark (per
EMC Directive 89/336/EEC)
N.I.S.T. Certified Test Lab Calibration: Standard
Flow ElementMaterials of Construction:
Standard: 316 stainless steel with nickel braze per
specification AMS 4777 for all wetted surfaces.
Optional: Hastelloy C with corrosion-resistant alloy
braze.
Process Connection:
Standard: 0.75 inch female NPT on 1 inch tubing; male
NPT or female NPT on 1, 1.5 or 2 inch schedule 40 pipe.
Optional: Flanges
Inline Flow Tube Diameter / Length (from inlet to
outlet):
1 inch tubing / 7.25 inches [184 mm]
1 inch schedule 40 pipe / 12 inches [305 mm]
1.5
inch schedule 40 pipe / 12 inches [305 mm]
2 inch schedule 40 pipe / 12 inches [305 mm]
Customer specified flow tube lengths are available as an
option.
Operating Temperature: -50° to +350° F [-45° to +177°
C]
Operating Pressure: To 1000 psig [69 bar(g)]
Flow TransmitterOperating Temperature: 0° to
150° F [-18° to +66° C]
Input Power: 115 to 130 Vac, 200 to 260 Vac or 22 to
30 Vdc, or 9 to 36 Vdc (HART only);
16 watts maximum.
Output Signal: Two analog independent outputs may be
field set from the following selections:
4-20 mA, 0-10 Vdc, 0-5 Vdc and 1-5 Vdc.
Digital Communication Port: RS-232C
Relay Output: Two independently adjustable 10 amp
alarm relays rated at 115 Vac and 24 Vdc or
2 amp at 230 Vac.
Display and Built-In Keypad: 4 lines, 20 characters
per line LCD display indicates flow rate, process
temperature or totalized flow and switch point status (field
selectable). Easy touch keypad permits programming to change
zero, span, swtich points, and units of measurement for
instrument verification, troubleshooting and other critical
instrument functions.
Interconnecting Cable: 10 ft. [7.6 m] PVC cable (standad),
custom lengths are available.
Optional Remote Enclosure: Aluminum rated for
location use Groups B, C, D, E, F and G, CENELEC EEx d IIC
and resists the effects of weather and corrosion per NEMA/CSA
Type 4X (equivalent to IP66).
Optional Flow Conditioner: VORTAB® flow conditioner
Model VMR Meter Run, Model VIS Insertion Sleeve or Model VFK
Field Kit to improve flow meter performance in piping
installations with inadequate straight run, inline or
out-of-plane elbows, control valves or any other obstructing
configurations.
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